a quilt is a type of blanket, traditionally composed of 3 layers of fibre: a woven cloth top, a layer of batting or wading and a woven back, combined using the technique of quilting.a quilt is distinguishable from other types of blankets because it is pieced together with several pieces of cloth.
in short words, it is a type of blanket.
hope this will help.
thanking you,
Simran.